0.20.0

Add UDP socket support

Lori now supports UDP alongside TCP. UDPSocket follows the same class-in-actor pattern as TCPConnection: the I/O state machine lives in a plain class that your actor holds and delegates to.

A UDP application implements UDPSocketActor and UDPLifecycleEventReceiver, provides _socket() returning the UDPSocket, and receives callbacks for _on_bound, _on_bind_failure, _on_received, and _on_closed.

use "lori"
use net = "net"

actor UDPEchoServer is (UDPSocketActor & UDPLifecycleEventReceiver)
  var _udp: UDPSocket = UDPSocket.none()

  new create(auth: UDPAuth, host: String, port: String) =>
    _udp = UDPSocket(auth, host, port, this, this)

  fun ref _socket(): UDPSocket =>
    _udp

  fun ref _on_bind_failure() =>
    None

  fun ref _on_received(data: Array[U8] iso, from: net.NetAddress val)
    : ReadAction
  =>
    _udp.send_to(consume data, from)
    KeepReading

send_to returns a SendToResult union: SendToOk when the datagram was handed to the OS, SendToWouldBlock when the send buffer is full, SendToError on an unrecoverable error, or SendToNotOpen when the socket is not bound. UDP sends are synchronous and all-or-nothing.

_on_received returns a ReadAction, the same as TCP. The read loop also yields after processing a buffer's worth of bytes or the per-turn datagram ceiling (256 by default).

UDPAuth is made from AmbientAuth or NetAuth.

Update to work with ponyc 0.70.0

Updated for compatibility with ponyc 0.70.0.

[0.20.0] - 2026-09-04

Added

• Add UDP socket support (PR #385)

Changed

• Update to work with ponyc 0.70.0 (PR #391)